# LeanFITT™ Pro vs IE Calculator

The clearest difference is ratings volume: LeanFITT™ Pro at 8 against IE Calculator's 1. IE Calculator's advantage is iOS requirement (9.2 vs 13.0). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for LeanFITT™ Pro against 5.0 for IE Calculator. That said, the two scores are not equally well evidenced: LeanFITT™ Pro has 8 ratings behind it against 1, so its average is the more settled of the two.

LeanFITT™ Pro ships an update every 18 months, IE Calculator every 10 months. The most recent releases landed on September 23, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | LeanFITT™ Pro | IE Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (8 ratings)](https://appshunter.io/ios/app/leanfitt-pro/id1438963242/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/ie-calculator/id1455888355/reviews) |
| Number of ratings | **8** | 1 |
| Positive reviews | 85.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 10 months** |
| Monetization | Free | Free |
| Size | 28 MB | 16 MB |
| Requires iOS | 13.0 | **9.2** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MCS Media, Inc.](https://appshunter.io/developer/580374017) | [Gustavo Sousa](https://appshunter.io/developer/1079985358) |

## What reviewers say

### LeanFITT™ Pro

[App page](https://appshunter.io/ios/app/leanfitt-pro/id1438963242)

This app streamlines process improvement with AI-powered insights and gamified tracking. It offers intuitive Lean tools for individuals and teams to focus, involve, track, and transform workflows, fostering collaboration and growth.

**Highlights:** AI-powered insights, Gamified progress tracking, Intuitive Lean tools (A3, VSM, DMAIC), Quality tools (Fishbone, 5 Whys), Interactive learning and quizzes, Leaderboards and rewards, Kanban action board

**Features:** macOS Compatibility

**In-app purchases:** none


### IE Calculator

[App page](https://appshunter.io/ios/app/ie-calculator/id1455888355)

This app assists industrial engineers with manufacturing planning by providing tools for production capacity, takt time, and job efficiency calculations. It supports various demand frequencies and helps determine the time needed per unit.

**Highlights:** Production Capacity Calculation, Takt Time Calculation, Actual Jobs Per Hour (JPH), Hours Per Unit (HPU) Calculation, Support for various demand frequencies

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is LeanFITT™ Pro free?

LeanFITT™ Pro is free to download, with no in-app purchases.

### Is IE Calculator free?

IE Calculator is free to download, with no in-app purchases.

### Which has better reviews, LeanFITT™ Pro or IE Calculator?

LeanFITT™ Pro and IE Calculator are both rated 5.0 out of 5 on the App Store, from 8 and 1 ratings respectively.

### Do LeanFITT™ Pro or IE Calculator have ads?

Neither LeanFITT™ Pro nor IE Calculator shows ads.

### Which is updated more often, LeanFITT™ Pro or IE Calculator?

LeanFITT™ Pro ships an update every 18 months, and IE Calculator every 10 months. Most recently, LeanFITT™ Pro was updated on September 23, 2026 and IE Calculator on September 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*